On German heavy tanks there is a tool that looks like what mechanics in the U.S. call a "speeder" handle. It is bent so that you can turn things quickly. What is the similar tool on German tanks used for? Sorry I can't find a good pic of what I'm talking about!

I think you're talking about the starting handle.

Vinnie

All German tanks were fitted with an inertia starter as well as an electric one. In order to save drain on the batteries, when not in a combat situation, the engine would sometimes be turned over by hand. There is a photo of some poor unfortunate crewman doing this in the Squadron/Signal Stug III in Action book.

There's a short wmv clip of someone starting a Tiger II on this page

http://www.ss501panzer.com/332_APG_driving_1945.htm

That's what I'm talking about! Thanks guys! I never would have guessed that's what it was! Who would imagine that you hand start a tank!?

Even the Sherman, especially the radial engined types, had to be turned over by hand before engaging the electric starter after they had been standing awhile i.e. overnight. However, this was not to save the batteries but due to possable vapour lock in the lower cylinders. Thats why they also have a starting handle as part of their stowage.

Geoff, where is the insertion point for the crank? Is it the small hole in the rear hull plate of the M4, i the centre? IF not, what is that hole there for?
Cheers
Brad

You've guessed correctly Bradley. When you look under the overhang, you even see a guide tube for the starter crank, leading into the engine compartment.

I'm sure later radial engined Sherman's with the rear "luggage rack" bothered crews as they had to lift the thing up in order to insert the starter crank.